Pole-reenforcing sleeve



INVENToR.

E. HEYDON POLE REENFORGI1\1G SLEEVE Filed May 5 1924 Dec. 7, 1926.

Patented Dec. 7, 1926.

SFAELS retirar EDVJARD EIEYDON, DEGEASED, LATE NDANAPQLS, NDE'AI'lA; BYEMMA. HEYDON, XECTRX, OF NDANAPLIS, INDANA, ASSEGNQR TG EMMA HEYDON, 0FXN" DIANALIS, INDANA.

Application tiled May 5, 1924.' Serial No. 71'1,184.

ltis the object oi" the present invention to provide a pole-reeniorcingsleeve which can be put on and 'taken ott the pole with relatively greatease; which is capable of use on portions oi the pole where thediaineter changes as well as on portions thereof Vwhere the diameter isunii'orin; which is formed with interlocking parts which may beinterengaged and disengaged Vloy relatively short longitudinalnioveinent between such parts; which has interlocking parts whichinterlock i'irrnly regardless of any reaction troni a pole or other partwithin the sleeve, so that the locking together of the sleeveparts willhe independent ot ther pole; which serves to tighten the locking actionas the interlocking parts inove together into their intertting relation;and which has a saitetyV device :tor holdin@ the parts locked togetheragainst accidental displacement.

The present invention is to seine extent a development ot andimprovement on that set torth in the co-pending application Ser. No.622,862, tiled March 5, 1923, by the same inventor.

ln carrying out the present invention, the sleeve is inade et aplurality of parts which together forni a complete sleeve; and thesesleeve-parts are provided at their meeting edges with interlockingineinbers which are engageahle and disengageahle by a comparativelyshort longitudinal movement otl one sleeve-part relatively to another.These interloclziingl ineinloers are inost conveniently tongue-sectionsand groove-sections, longitudinally spaced apart so that the sections ofeach set ot interlocking parts have spaces between there ot suiiicientlength to receive the sections of the other set. This, however, as so`i'ar described is set forth in the afore said co-pending application.

By the present iinprovenient, however, several independent developmentshave been inade. One of these is the making of the interlocking partswedge-shaped, so that they tighten the parts relatively they enter oneinto the other. Another is the making of the tongue-sections and thegroove-seo tions of suoli nature as to preclude their withdrawal orputting together other than by relative longitudinal inoveinent hetweenthe respective parts, regardless of whether or not there is a polewithin the sleeve; a third feature is the provision ot locking fingerstor preventing accidental relative longitudinal inoveinent to separatethe parts.

rEhe accompanying drawing illustrates the invention: Fig. -1 is avertical sectional view through a multi-section tubular steelfpoleequipped at various points with polereent'orcing sleeves ot theinvention, the two lower sleeves vbeing shown as filled with grout,while the uppermost sleeve is shown as snugly iitting the pole without`rrout; Fig. 2 is an enlarged perspective view of the lowerniost sleeveshown in Fig. 1, with the two sleeve-parts interloclred; Fig. 3 is aYsection on the line 3 3 of Fig. 2, but het'ore the grout has been put inplace; Fig. l is an enlarged elevation oi' the uppermost sleeve ot' Fig.1, with the two sleeve-parts displaced sulliciently to unlock thein; andFig` 5 is a planv ot the sleeve shown in Fig. 4.

The pole shown is a multi-section steel pole, having a lower part 10 setin the ground 11 but projecting iuowaru therefrom, an intermediate part12 the low-er end ot' which projects soine distance into the upper endof the section l0, and an upper section 13, the lower end ot whichproiects into the upper end ot the section 12. This pole has severalwell-deiined points where it is most apt to corrode and hecoine weakenedby natural conditions, due to the retaining or" inoisture in Contactwith the metal. hese are at the ground line 11 tor the section 10, andat th-euupper ends oit the sections 10 and 12 for the sections 12 and 13respectively. Therefore, it is at these points that the pole is inostapt to need i'f-eentorcin-p,` sleeves, which may he put around the poleat these points, as indicated in Fig, 1.

The reentorcing sleeve may lit the polo fairly snugly, with no materialintervening space, as the uppermost sleeve 11i is shown in Fg. 1, orinay he slightly spaced troni the pole by internal lugs 15 on thesleeve,

as the intermediate and lowermost sleeves 16 and 17 are shown in F ig.1, in which latter cases the intervening space between the sleeve andthe pole may be filled with grout 18. The lowermost sleeve 17 is of thesame size at both top and bottom, because it is not intended to extendpast a pole-joint; but the two `sleeves 14 and 16 are of smallerdiameter at the top than at the bottom, because they co-operate with thepole at joints, and at each joint the pole is smaller above the jointthan it is below the joint. This two-d ameter feature is made possibleby the invention of the present application and of the aforesaidco-pending application. The one-diameter sleeve is shown in Figs. 2 and3, and the two-diameter sleeve in Figs. 4 and 5; but either can be used,as conditions require. As so far described, exe cept for thetwo-diameter feature, the structure is old, and the invention isapplicable to any of the types of sleeves Shown, whether one-diameter ortwo-diameter sleeves, and whether with or without the .'nternal lugs 15.

Each sleeve 14, 16, and 17 is made of a plurality of parts 21 and 22.Most conveniently these parts are halves, and duplicates, so that twosimilar parts are used to form a complete sleeve, each part extendingfor around the pole circumference. Each sleeve-part at one longitudinaledge has a discontinuous tongue formed by a plurality of spacedtongue-sections 23, equally spaced. Preferably there is a tongue-sectionat each end, so that there is one more tongue-section than space. On theother longitudinal edge, each sleeve-part has a plurality of spacedrib-sections 24, which are provided with grooves 25 of the proper sizeand shap-e to receive the tongue-sections 23. The ribsections correspondin number to the tonguesections, and are correspondingly spaced. Eachspace between adjacent tongue-sections or rib-sections is convenientlylonger than a tongue-section or rib-section itself, for clearance inassembling and disassembling. Conveniently, all the tongue-sections andall the rib-sections on a sleeve-part are coplanar, ylying in the samediametrical plane.

Instead of Yhaving the tongue-sections 23 and the grooves 25 radial, asin the aforesaid co-pending application, they are arranged so that theyinterlock against relative radial movement.V In that way, the twosleeve-parts are prevented from being separated, and the tongue-sectionsare prevented from being separated from or inserted in the groove 25, byother movements than longitudinal movement between the two sleeve-parts.Conveniently, this individual interlocking between a tongue-section andits mating groove is obtained by making the tongue and vthe groovesubstantially perpendicular to the radii passing through them, is clearfrom Figs. 3 and 5, and by grooves with bases which lie behind the basesof the tongue. In other words, in this convenient arrangement thetongues l23 are made to extend out slightly radially and then to bendtangentially; and the rib-sections containing the grooves are made toe3:- tend outward substantially radially past the bases of thetangential part of the tongues, then to extend tangentially, then toentend inwardly, and then to hook back tangentially toward theirlirst-named parts. Vtith this ar rangement, the tongue-sections cannotbe. separated from the grooves inV the rib-sec tions other than byrelative longitudinal movement between them.

Further, the tongues 23 are made longitudinally wedge-shaped, as isclear from 4, and the. grooves in the rib-sections 24 are mad-e matinglywedge-shaped. The inclined surface is formed onV the free edge of thetongue, and on the mating part of tne groove, so that the wedging actionbetween such parts will serve to vdraw the two sleeveparts together.These inclined or wedging surfaces are best shown in 4, where eachtongue-section 23 is shown with its inclined edge Vsurface 26, land eachrib-section 24 is shown with an inclined base 27 for cooperating withthe edge 26 of the tongue.

lith the arrangement as thus described, it is possible to assemble anddis'assemble the sleeve, whether on a pole or not, by displacH ing thetwo lsleeve-'parts longitudinally by only the -length of atongue-section or ribA section. In vother words, with the tonguesections `and rib-sections similarly spaced.l and with a section ratherthan a space at each end of each sleeve-part, the longitudinaldisplacement between the two sleeveparts necessary to assemble ordisassemble the sleeve is the invert of twice the nuinber oftongue-sections or rib-sections minus onev that is, if there are fourtongue-sections, the necessary displacement is only oneseventh of thesleeve-length, as shown in 4. By making this displacement, the twosleeve-parts can be vput together so that the tonguesections of eachsleeve-part are in alinement with the grooves in the rib-sections of theother sleeve-part, whereupon the. two sleeve-parts may be movedrelatively longitudinally to -lock the two sleeve-parts together. Thismakes it necessary to drive a sleeve-part only a fraction ofr what wasformerly required in order tolock it to or unlock it from the othersleeve-part, so that the breakage is thereby greatly reduced, and theliability of encountering obstructions in movement is correspondinglyfreduced.

This assembling and disassembling involves an interlocking betweentongue and groove, independent of any action'of the pole within thesleeve, because of the individual interlocking of-each tongue with itslll) action is independent o" the presence or a.

pole in the sleeve.

lWhen the vsleeve is assembled at a joint, as are the sleeves 14 and 16ot Fig.' 1, one sleeve-part is put on the pole at the joint,

and the other sleeve-part is put on at the necessary distance above thejoint so that the rib-sections and tongue-sections ot that sleeve-partwill interdigitate With those ot' its mate; and then the highersleeve-section is driven downward to loclr the two parts together and tokeep both sleeve-parts on the upper end of the adjacent lowerpole-seotion. The change in diameter when there is a two-diametersleeve, as at a joint, is at a place between sections of the tongues andribs, as is indicated in Fig. A. When the tWo sleeve-parts are loclredtogether, the grout- 18, it it is used, may e poured in place.

2 TWhen it is desired to separate the tivo sleeve-parts, it is necessaryto move one sleeve forward longitudinally relatively to the other onlyby the same distance that was required for putting them together.

ln order to prevent accidental longitudinal movement to separate thetivo sleeveparts, there is preferably provided on either or bothsleeve-parts one or more ngers 30, near the end of a tongue-.section ora rib-section, at that end thereof which must be passed by the matingrib-section or tongue section in the separation orn the tWo sleeveparts.rllhese lingers 30 normally are out of the path of the rib-sections ortongue-sections on the other part; but after the two sleeve-parts havebeen put together, these lingers may be bent inivard into the path of arib-section or tongue-section on the other s eeve-part, as is indicatedfor the uppermost linger 8O in F ig. 2. lWith the linger thus bent in,the tivo sleeve-parts cannot be moved relatively to disengage them,until such bent-in linger has first been moved out of the Way. There maybe any number yof such fingers; but preferably several are provided, sothat in ease one breaks oil, another is in reserve.

The invention claimed is 1. A pole-reentorcing sleeve, comprising aplurality of parts which together form a complete sleeve, said parts atthelrmeeting longitudinal edges being provided With eX! teriorinteriitting Wedging tongues and grooves.

2. A pole-reentoroing sleeve, comprising a plurality ot parts whichtogether form a complete sleeve, said parts at their meetinglongitudinal edges being provided. With eX- terior interlitting We gingtongues and grooves, said tongues and grooves being in sections so thatthe sleeve-parts may be put together and taken vapart by relativelongitudinal movement less than the length of4 the sleeve.

3. A pole-reenforcing sleeve, comprising a plurality of parts whichtogether term a complete sleeve, said parts at their meetingYlongitudinal edges being provided With intertitting tongues and grooveswhich independently ot' the presence or" a pole Within the sleeveindividually interlock against separation by relative diametralmovement, said tongues and grooves being in sections so that thesleeve-parts may be put together and taken apart by relativelongitudinal movement less than the length of the sleeve.

l. A pole-reenforoing sleeve, comprising a plurality of parts Whichtogether form a complete sleeve, said parts at their meetinglongitudinal edges being provided With interlitting Wedging tongues andgrooves which independently ot' the presence of a pole Within the sleeveindividually interlock against separation by relative diametralmovement, said tongues and grooves being in sections sov that thesleeve-parts may be put together and taken apart by relativelongitudinal movement less than the length of the sleeve.

5. A pole-reent'orcing sleeve, comprising a plurality of parts whichtogether form a complete sleeve, said partsat their meeting longitudinaledges being provided with intertitting tongues and grooves whichindependently of the presence ot a pole Within. the sleeve individuallyinterlock against separation by relative diametral movement, and alocking device for preventing longitudinal movement vof saidsleeve-parts to separate them.

6. A pole reentorcing sleeve, comprising a plurality of parts Whichtogether form a complete sleeve, said parts at their meetinglongitudinal edges being provided with interitting tongues and groovesWhich independently of the presence ot' a pole Within the sleeveindividually interlock against separation by relative diametralmovement, said ltongues and grooves being in .sections so that thesleeve-parts may be put 'together and taken apart by relativelongitudinal movement less than the length of the sleeve, and a lockingdevice for preventing longitudinal movement or" said sleeve-parts toseparate them.

7. A pole-reenforcing sleeve, comprising a plurality of parts whichtogether form a complete sleeve, said parts at their meetinglongitudinal edges being provided with exterior interlitting tongues andgrooves, and a locking device for preventing longitudicsi lib

nal movement of said sleeve-parts to separate y them. v

8. A pole-reenforcing,sleeve, Acomprising a plurality of part-s whichtogether form a complete sleeve, said parte at theiil meetinglongitudinal edges being provided with eX-y terioi' in'teiitting tonguesand grooves, .said tongues and grooves being in Sections so that thesleeve-parte may he` put together and teken apartA by relativelongitudinal movement less thanthe length ofV the sleeve, sind a lockingdevicel foi nfeventing lQlg'l tudinal movement of Said sleeve-parts to.separate them.

In Witness whereof7 I have hereunto set my hand at indianapolis,indiana, this 2nd day of May, 192%.

EMMAV HEYDON, Ewecurtr/ of like, Estara of Edwazcl Heyden,

Deceased.-

